Manifolding



p 1940 1.. c. ANTRIM 2,213,645

MANIFOLDING Original Filed Dec. 13, 1937 Fig. 1

UNSIZED & UNCALENDERED PAPER 0% r I I 45 COATED WITH OIL SOLUBLE INKCONTAINING INSOLUBLE POWDER Fig. .3

2g IMPREGNATED WlTH OIL SOLUBLE INK I I0 .u my, A .T,

INSOLUBLE POWDER DEPbSIT ON SURFACES OF PAPER [23 1 ,KCOATING OF LACQUERr on. SOLUBLE INK CONTAlNiNG INSOLUBLE POWDER INVENTOR B Louis C Anfrim,w?

ATTORNEYS Patented Sept. 3, 1940 UNITED STATES PATENT OFFICE MANIFOLDINGOriginal application December 13, 1937, Serial No.

17 9,436. Divided and this application February 17, 1939, Serial No.256,956

11 Claims. (Cl.282 28) I This invention relates to manifolding, and moreparticularly to transfer devices for use in manifolding.

This application is a division of my copending application Serial No.179,436, filed Decem ber 13, 1937.

In transfer devices, it is desirable that the transfer medium or papercarry a maximum quantity of ink so that the device will last over aconsiderable period of time. However, it'has been found that suchtransfer paper will produce undesirable smudges and will bleed or losethe ink quite rapidly when in use. To overcome this difficulty,applicant has devised a new transfer sheet.

According to the present invention, a porous sheet is impregnated withan oil-soluble ink and is provided with a layer or coating in intimatecontact with the sheet providing a porous cover for the sheet which willeffectively control the amount of ink permitted to leave the paper whenan impression is made from the paper, and which will prevent smudges dueto excessive ink on the'surfaces of the paper.

The layer or porous cover is composed of finely divided material whichis insoluble in the ink solution and which is also incapable of chemicalreaction with the constituents of the ink. This material adheres firmlyto the paper 0 and is retained thereby for substantially the life of thepaper. v

The transfer device of the present invention is made by the processclaimed in my copending application, wherein the paper is simultaneouslyimpregnated with the ink solution and coated with the finely dividedink-retarding material. This enables the production of the paper to beeffected very rapidly.

In carrying out this method, the finely divided material is held insuspension in the ink solution and, as the ink is absorbed in the paper,the finely divided material will be deposited on the surface thereof. Itwill be seen that the deposit will be in proportion to the amount of inkabsorbed in the paper so that, when only a small amount of ink isabsorbed, only a thin coating is formed on the surface and, conversely,when a large amount of ink is absorbed, the deposit on the surface willbe thicker. The deposit or layer is slightly porous so that it willcontrol the fiow of ink from the paper to another medium whenimpressions are made therefrom.

If desired, one side of the paper can be rendered nontransferring byproviding it with an impervious coating of lacquer or the like, so

that, when used in a typewriter, thepaper will only make one transferimpression.

Other features and advantages of the invention will be apparent from thespecification when considered in connection with the drawing, in which:

Figure 1 ma sheet of paper.

Fig. 2 shows a section of the sheets slightly impregnated with the inkand having a thin coating of insoluble powder on the surface.

Fig. 3 shows a section of the paper which is fully impregnated withoil-soluble ink and having a heavy deposit of insoluble powder on thesurface.

Fig. 4 shows a section of the paper which has been fully impregnated andcoated with the'finely divided material and having a backing coatoflacquer thereon.

Fig. 5 shows a view of the paper-inking machine.

According to the invention, a paper If) is used as the base material.The paper is unsizcd and uncalendered so that it is very porous. It mustbe understood, however, that any type of porous material may be used,according to this invention. The paper is usually Wound into a roll IIwhich is mounted on a spindle I2 at the receiving end'of an inkingmachine l3. A mixture of oil and pigment'or dye I4 is mixed and placedin the trough IS. A suitable quantity of finely divided or powderedmaterial, which will not chemically react with the ink solution andwhich is insoluble in the ink solution, is next mixed with the inksolution in the trough l5 so as to be suspended in the inking solution.The solution and powdered material may be completely mixed before beingplaced in the trough [5 if desired.

The finely divided material or powder may be a metal such as aluminum orbronze, ametal alloy, a metal oxide such as iron oxide, soap stone, orthe like. For example, iron oxide makes a Very effective coatingmaterial for black transfer paper.

The paper from the roll 'II, is passed over a guide 'roller I6 and intothe solution in the trough. A guide roller I1 is mounted so as to bepositioned in' the trough to hold the material As the paper passesplacesa light deposit of the powdered material on the surface. Fig. 3diagrammatically shows the sheet when fully impregnated with the ink andcoated with the insoluble powder deposit.

As is indicated by these two figures, the amount of powdered materialdeposited on the surface is in proportion to the amount of ink absorbedby the paper. When a small amount of ink is absorbed by the paper, thelight coating of powdered material which is deposited will be sufiicientto prevent the paper from smudging or bleeding. However, when a largeramount of ink is absorbed by the paper, to thoroughly saturate the same,the danger of smudging is much greaterand a larger amount of coating onthe surface is necessary to prevent the smudging or excessive bleedingof the ink. This Will be present because the increased absorption of theink into the paper will be operative to deposit by filtration largerquantities of coating material on the paper, and this will be sufficientto prevent the ink from passing from the paper too freely when used; Theamount of ink absorption and coating can be controlled by the speed atwhich the paper is carried through the solution.

The paper, upon leaving the solution, is passed around a guide roll I8,through a pair of squeezing rollers I9, between a pair of spring-pressedfeed rollers 20 and through a pair of felt-covered rollers 2|. The paperin leaving the tank has the excess ink squeezed therefrom by the rollersl9, which also function to press the powdered material into. moreintimate contact with the paper. The layer of finely divided material,when in intimate contact with the paper, will adhere thereto for thelife of the paper without the use of adhesives or other bonding means.Should there be any unevenness in the coating or any surplus inksolution on the surface of the strip, it will be absorbed and evenlydeposited by the felt rollers 2|. The strip is then led to a windingmeans or other take-up device (not shown) where it is allowed to dry.

This process produces a transfer sheet provided with two transfer sides,each capable of giving an impression. If desired, one surface of theimpregnated strip can be rendered nontransferring. This may be done invarious ways. For example, a backing material or lacquer 23 can beapplied directly to the paper if the backing material or the lacquer isimpervious to the ink solution. If the material is not completelyimpervious to the ink solution or will not properly adhere to the paper,a bonding or filler coat can be first applied to the paper and then thelacquer applied to complete the seal of the back of the paper. Thisprevents offset impressions when the paper is used in a typewriter orthe like.

Variations and modifications may be made within the scope of thisinvention and portions of the improvements may be used without others.

I claim:

l. A transfer device for repeated manifolding use comprising asemiporous paper saturated with an-oil-soluble ink and having a filteredlayer on each side of the paper of finely divided material which isinsoluble in the ink and which will not chemically react with the ink,said layer retarding the flow of ink'from the paper.-

2. A transfer paper for repeated manifolding use comprising a semiporouspaper saturated with an oil-soluble ink and having a coating on eachside of the paper of 'finely divided metal oxide which is proportionalto the amount of ink in the paper for retarding the flow of ink from thepaper, said metal oxide being insoluble in the ink and will notchemically react with the ink.

3. A transfer paper for repeated manifolding use comprising a semiporouspaper saturated with an oil-soluble ink and having a coating on eachside of the paper of finely divided iron oxide which is proportional tothe amount of ink in the paper for retarding the flow of ink from thepaper, said iron oxide being insoluble in the ink and willnot'chemically react with the ink.

4. A transfer device for repeated manifolding use comprising a porouspaper impregnated with an oil and pigment ink solution; a layer ofpowdered material on each side of the paper in intimate contacttherewith and forming a slightly porous coating for the paper inproportion to the amount of ink solution in the paper to retard the flowof ink therefrom, said powdered material being insoluble in the inksolution and incapable of chemical reaction with the ink solution.

5. A transfer device for repeated manifolding use comprising a porouspaper impregnated with an oil and pigment ink solution; a layer ofpowdered material including 'metal oxide on each side of the paper inintimate contact therewith and forming a slightly porous coating for thepaper to retard the flow of ink therefrom, said powdered material beinginsoluble in the ink solution and incapable of chemical reaction withthe constituents of the ink, and the thickness of the layer 1 beingproportional to the quantity of the ink solution absorbed by the paper.

6. A transfer device for repeated manifolding use comprising a porouspaper impregnated with an oil and pigment ink solution; a layer ofpowdered material including finely divided material on each side of thepaper in intimate contact therewith and forming a slightly porouscoating for the paper to retard the flow of ink therefrom, said powderedmaterial being insoluble in the ink solution and incapable of chemicalreaction with the constituents of the ink, and the thickness of thelayer being proportional to the quantity of the ink solution absorbed bythe paper.

7. A transfer device for repeated manifolding use comprising a porouspaper impregnated with an oil and pigment ink solution; a layer ofpowdered material including powdered metal on each side of the paper inintimate contact therewith and forming a slightly porous coating for thepaper to retard the flow of ink therefrom, said powdered material beinginsoluble in the ink solution and incapable of chemical reaction withthe constituents of the ink, and the thickness of the layer beingproportional to the quantity of the ink solution absorbed by the paper.

8. A transfer device for repeated manifolding use comprising a porouspaper impregnated with an oil and pigment ink solution; a layer ofpowdered material including iron oxide on each side of the paper inintimate contact therewith and forming a slightly porous coating for thepaper to retard the flow of ink therefrom, said powdered material beinginsoluble in the ink solution and incapable 'of chemical reaction withthe constituents of the ink, and the thickness of the layer beingproportional to the quantity of the ink solution absorbed by the paper.

9.'A transfer device for repeated manifolding use comprising a porouspaper impregnated with an oil and pigment ink solution; a layer ofpowdered material including aluminum powder on each side of the paper inintimate contact therewith and forming a slightly porous coating for thepaper to retard the flow of ink therefrom,

said powdered material being insoluble'in the ink solution and incapableof chemical reaction with the constituents of the ink, and the thicknessof the layer being proportional to the quantity of the ink solutionabsorbed by the paper.

10. A transfer device for repeated manifolding use comprising a porouspaper impregnated with an oil-soluble ink and having a filtered coatingof finely divided material thereon in intimate contact with the paper,the finely divided material being insoluble in the ink and incapable ofchemical reaction with the ink; a coating of bonding or filler materialon one surface of the paper; and a coating of material which isimpervious to the ink solution covering the bonding material.

11. A transfer device comprising a porous, inkimpregnated fabric havinga layer of fiow-retardinz material on the surface thereof forcontrolling the flow of inktherefrom during use, said layer beingdirectly proportional to the amount of ink' in the fabric to produce auniform flowl therefrom dull transfer.

LOUIS QANTRDL

